Antananarivo, capital of Madagascar, is known locally by a shorter name. Which of these is it?

Antananarivo is the capital and largest city of Madagascar. The administrative area of the city, known as Antananarivo-Renivohitra ("Antananarivo-Mother Hill" or "Antananarivo-Capital"), is the capital of Analamanga region. The city sits at 1,280 m (4,199 ft) above sea level in the centre of the island, and is the highest national capital by elevation of all the island countries in the world. It has been the country's largest population centre since at least the 18th century. The Presidency, National Assembly, Senate and Supreme Court are located there, as are 21 diplomatic missions and the headquarters of many national and international businesses and NGOs. It has more universities, nightclubs, art venues, and medical services than any city on the island. Several national and local sports teams, including the championship-winning national rugby team, the Makis are based here.

The city is known as Tana by the 1.3 million inhabitants.